Comments

• simple ( 2 cos x + 1 ) ( cos x - 1) = 0 ( 2 cos x + 1 ) = 0 cos x = - 0.5 x = 120 degree ( cos x - 1) = 0 cos x = 1 x = 0 degree cos x = 1

  in 2(cos^2(x))-cos(x)-1=0? Comment by tbt June 2021
• let d be distance from the block taking moment about point of contact at the block 422 * 4.6 = 123 * 2.3 + 63.4 * 9.81 * d anti clockwise moment = clockwise moment d= 2.666 m ---answer

  in Physics please help????? plank problem? Comment by tbt May 2021
• let d be distance from the block taking moment about point of contact at the block 422 * 4.6 = 123 * 2.3 + 63.4 * 9.81 * d anti clockwise moment = clockwise moment d= 2.666 m ---answer

  in Physics please help????? plank problem? Comment by tbt May 2021
• let d be distance from the block taking moment about point of contact at the block 422 * 4.6 = 123 * 2.3 + 63.4 * 9.81 * d anti clockwise moment = clockwise moment d= 2.666 m ---answer

  in Physics please help????? plank problem? Comment by tbt May 2021
• simple ( 2 cos x + 1 ) ( cos x - 1) = 0 ( 2 cos x + 1 ) = 0 cos x = - 0.5 x = 120 degree ( cos x - 1) = 0 cos x = 1 x = 0 degree cos x = 1

  in 2(cos^2(x))-cos(x)-1=0? Comment by tbt May 2021